Band-saw guide.



No. 732,799. PATENT-ED JULY?, 419991'. w. H. TROUT 9 9. M. HINK'LEY.'

BAND SAW GUIDE. APPLIOATION Hmm DBO. 9, 1902.

s sums-sum .1.

H0 MODEL.

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119,732,799. v791719111127317 JULY 7, 199s.

^ w. 11.719097 9G. M. HIN'KLEY.

*BAN-n SAW GUIDE. q

APPLICATION FILED DE()vl 9, 1902.

` -6 SHEETS-SHEET 2.,

No MODEL.

L 9 y www xi No. 799,799.A l 'PATUNTEU JULY 7, 1903. v7.19'. TROUT a G. M. HINKLUY.' 7, V

ABAND SAW GUIDE. f Y

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' @www N'0.7732,799. D 'PATDNTED JULY 7, 1903.

W. D. TROUT D G. M. HINKLEY.

BAND SAW GUIDE.

APPLIGATION FILED DEO. 9, 1902.

No MODEL. n sums-sum1: 4.

PATENTBD JULY 7, 1903.

SHEETS-SHEET 5.

? .w l?? i:

W. H. TROUT & G. M. HINKLEY.

BAND SAW GUIDE.

APPLIUATIONHLBD DB0. 9, 190g.

No MODEL.

UNITED STATES Patented July 7, ISGS.

PATENT OFFICE.

WILLIAM H. TROUT AND GEORGE M. HINKLEY, OF MILWAUKEE., WIS- CONSIN, ASSIGNORS OF ONE-HALF TO ALLIS-CHALMERS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF NEV JERSEY.

BAND-SAW GUIDE.

SPECIFICATION forming part of Letters Patent No. 732,799, dated July 7, 1903. .APPlication filed December 9, 1902. Serial No. 134,476. (No model.)

To @ZZ whom t matr/concern:

Be it known that we, WILLIAM HENRY TROUT and GEORGE M. HINKLEY, citizens ot' the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Band-Saw Guides, oi' which the following is a specification.'

Our invention relates to that class of bandsaw guides having friction-strips or guideplates held in position by supporting bars or housings.

It relates, further and particularly, to the means for holding the guide-plates or friction-strips in position and to the means for adjusting the guide-plate holders, and thereby the guide-plates.

It relates also to the means for protecting the guiding mechanisms and to the means for opening and closing the guide-plate-holding device and for holding the parts firmly and eiiiciently in position.

The principal object of this invention is to provide` a simple, economical, and efficient guiding mechanism for band-saws.

A further object o f the invention is to provide band-sawguidesinclosed in such a manner that the pressure strains are entirely within inclosing and retaining connections.

A further object is to provide guide-platesupporting side bars or housings adapted to hold the friction-strips or guide-platesin operative position and to provide the device with guards for throwing odslabs and lumber from contact with the guiding mechanism and saw.

A further object is to provide efficient means for readily opening and closing the guides. y

Other and further objects of the invention will appearfrom an examination of the drawings and the following description and claims.

The invention consists in the features, combinations, and details of construction hereinafter described and claimed.

In the accompanying drawings, Figure lis a longitudinal elevation of a guide constructed in accordance with our improvements; Fig. 2, a plan view of the same looking downward and showing the guide in closed position and the open position ot' the movable guide-plate-supporting bar in dotted lines; Fig. 3, a sectional plan view of one end of the guides, taken on line 3 of Fig. l

looking downward; Fig. 4, a sectional plan view of the opposite end, taken on line 4 of Fig. l looking downward; Fig. 5, a sectional elevation, taken on line 5 of Fig. l, showing the guide-plates or friction-strips and means for holding them in position; Fig. 6, a sectional elevation, taken on line 6 of Fig. l1, showing the means for holding the outer guide-plate-supporting housing adjustably in position uponv the base-plate; Fig. 7, a sectional view in elevation of the adjustingbelt mechanism for adj nsting the-base-plate, taken on line 7 of Fig. 2 looking in the direction of the arrow; Fig. 8, a plan view of the base-plate looking downward; Fig. 9, a

detailview in side elevation of one of the housing and bracket holders shown in Fig. 6; Eig.10, a detail view, in end elevation, of the housing and bracket holder shown in Fig. 9; Fig. ll, a detail of the locking-dog and guard for holding the movable guide-arm in closed position and guarding the device; Fig. l2, an end elevation of an upper guide, showing it connected to the supporting-arm of a mill; Fig. 18, a longitudinal elevation of the upper guide shown in Fig. 12; Fig. 14, a plan view of the upper guide looking downward, and Fig. l5 a longitudinal elevation of the upper guide looking in a direction opposite to that as the upper one, requiring only slight modiiicati'ons, as are herein indicated. VIn order to disclose the invention, therefore, it is .only necessary to describe the lowerguide and the modifications of construction necessary to produce the upper one.

In constructing a guide in accordance with our improvements we provide a base-plate c.

which is held in position upon the mill bedplate l) by means of a center stud c, as shown in Fig. l, which forms a fulcrum for adjusting the guide base-plate in desired alinement with relation to the saw. In order to enable such adjustment to be readily accomplished, a squared stud tl, having a perforation through the upper squared end thereof, is secured to the mill bed-plate near one end of the base-plate and provided with an adjusting-bolt e, mounted in the above-mentioned perforation in the squared end of the stud and in threaded connection with a nut-pinf on the end of the base-plate, as shown in Figs. 2 and 7. This adjusting-bolt is provided with a head g, which contacts the squared head of the bolt (l and is provided with an adjusting-nut hand a locking-nut t', by means of which it is adjusted and held in locked position. The base-plate is provided with an outer arm j, which extends on the outside of the saw, and an inner arm 7o, Which extends on the inside thereof and which forms the base upon which the outer and inner housings and friction-strips or guideplates are respectively mounted. An outer housing Z is mounted upon the outer arm of l the base-plate for holding the outer guideplates, hereinafter described, in position and arranged to extend over the edges of such guide-plates and form a shield, as Well as a support for the guide-plates and their supporting-plates. It is very desirable that .means be provided for enabling this housing and the guide-plates held thereby to be readily adjusted transversely and longitudinally of the base-plate. To accomplish this, the outer arm of the base-plate is provided with a T-shaped slot m in its upper surface, which extends longitudinally thereof throughout its entire length and in which are mounted housing and bracket holders n, (see Fig. (3,) each ot which holders comprises a central body or nut portion having a threaded bore o therethrough, a projecting base j), which rests upon the upper face of the baseplate, a depending head portion q, adapted to slidingly engage the shouldered slot of the base-plate and hold the holder slidably in position thereon, andan upwardly-projecting threaded bolt portion r, which extends through a perforation s in the housing when the holder is in operative position.

An adjusting-screw t is mounted in the bore of the body portion ot'l the holder above described, so as to extend horizontally therethrough or at an angle to the axial center of lthe holder, and is provided with a collar 'Lt at one end, rotatably mounted in a pocket o of the housing and in contact with a shoulder w, which forms the edge ol" such pocket. rlhis adjustingscrew is provided with a squared end y, by means ot' which it may be operated with the aid of a key or wrench. By this arrangement it will be seen that each end of the outer housing being provided with one of the holders and adjusting-screws, as

above described, such housing may be readily adjusted transversely of the base-plate by turning the adjusting-Screws in the desired direction and held rrnly in position when so adjusted by means of the bindingnut 2, which is in threaded engagement with the upwardly-projecting bolt portion of the holder and which engages shoulders 3 and 4 of the housing.

Antifriction strips or guide-plates 5, made, preferably, of Babbitt metal, are mounted in the housing and held in position by means of guide-plate holders 6, each of which is provided with perpendicular dovetailed slots 7,

adapted to hold the guiding strips or platesV removably in position. It is desirable that these guide-plates be held adjustably in position longitudinally of the housing, as Well as transversely, so that they may be readily adjusted to conform to the varying widths of the saw employed. To accomplish this purpose, the housing is provided with longitudinal slots S, in which vare mounted tap-bolts 33, which in turn are in threaded engagement with the guide-plate holders 6. For holding similar guide-plates in position on the opposite side of the saw and to enable them to be readily adjusted with relation to those already described a movable housing-bar or "guide-plate-supporting' arm7 9, as we prefer to term it, is provided, which extends when in closed position on the opposite or inner side of the saw parallel with the outer housing already described. The housing portion of the arm 9 extends over the edges of the guide-plates and forms a shield as well as a support for the guide-plates and their snpporting-plates. Thismovableguide-plate-supporting arm is pivotally mounted at one end upon bracket lO by means of a pivot-pin 1l and is provided with a planed flange portion 42, which slidingly contacts the inner arm 7c of the base-plate and is held firmly thereby against the strain of the saw, which is always in the same direction. This supporting end bracket is held in position so that'it may be readily adjusted both transversely and longitudinally of the base-plate by means of holder and adjusting-screw mechanism identical with that shown and described for holding the housing l in position, the holder for the bracket being mounted adjustably in the same longitudinal slot in the base-plate and provided with adjusting-screw mechanism of the same description.

To hold the movable supporting-arm in closed position and permit it to be readily opened and closed by a single operation, the swinging end thereof is provided with a connecting-guard 2O and locking-dog 12, pivototally mounted thereon by means of a pivot 13, and provided with a recess 14., forming a locking lug or jaw l5, which'when in locked position engages a locking-pin 1G, mounted in a bracket 17, which bracket, like the bracket l0, is held in position to be readily adjusted both transversely and longitudinally of the IOC) base-plate by means of holder and adjusting mechanism identical with that of the outer housi 11g-plate. The holders for both brackets and the outer supporting -housing are all mountedvslidably upon the base-plate and in the same longitudinal slot.

The pivoted supporting-arm and the locking-dog thereonare both operated by means of an operating lever-arm 1S, which is mounted upon the locking-dog by means of a nut 19 upon the threaded-end thereof. This operating lever-arm is placed on the lower side of the locking-dog and at such an angle that when the dog is in locking position the leverarm forms a'guard which protects the guide mechanism and saw from contact with slabs and lumber. To further protect the parts from injury, which might be caused by the returning lumber, particularly when a doublecutting saw is in use, the locking-dog is provided with a broad inclined guard portion 20, which forms a guard for the entire end portion of the guidemechanism and serves as a means for connecting the operating lever-arm and locking-dog proper. This guard may, however, be made integral Awith the lockingdog and for the purposes of this descriptionl may be referred to as a part thereof.

It is very desirable that means be provided whereby the pivoted guide-supporting arm may be moved into closed position, locked,

and the locking-dog secured in such position i lugs, so that the movement of the operating lever-armin a direction to open the guide will cause the pin to contact the end lug. A spring 24 is mounted upon the guard 20, to which it is firmly attached by means of a bolt 25 and nut 26, with its curved free end 27 extending inside of 'the inner lug of the supporting-arm when the parts are in locked position, so as to prevent the accidental unlocking of the parts, and adapted to spring into position on the outside of such inner lug when the leverearm is moved in the opening direction and the dog is in open position. It

Vwill thusbe readily understood that the parts the spring being between the lugs, the movefirmly in place thereby.

locking-dog in open position until its jawy contacts the locking-pin of the bracket. A continuation of the movement then causes the spring to snap to theinner sideof the lug and hold the parts in locking position, as shown in Fig. 3. j l p Guide-plates of Babbitt metal identical with those described as mounted in the outer housing are mounted in the samev manner upon the swinging supporting-arm, so as to be moved into operative position against the saw bythe movement of the arm and held seen that by this arrangement the supporting-bracket upon which the swinging arm is pivotally mountedis adjustable independ ently of the outer guide-plates and their immediate -supports and that the lockingbracket,with its locking-pin which holds the swinging end of the supporting-arm, is like- Wise independently adjustable. lThe swinging supporting-arm and itsguide-plates mayl therefore be readily adjusted into the desired position with relation to the saw and also with relation to the guide-plates on the opposite side of the saw, while the outer guide-V plates being mounted upon independentlyadjustable supports may likewise be readily adjusted both transversely and longitudinally of the guide with reference to the saw and to the other parts of the guide mechanism, and, furthermore, the guide plates or strips are thus,l held rmly in position from points on opposite sides of the saw, so that the entire strain due to the operation of the saw is received by the guide mechanism be- It will be readily IOO tween the -points of support. To further pro# tect the guide mechanism, the upper edges' of both the outer and inner housings are arranged at an incline upwardly and inwardly toward the saw, as shown in Fig. 5, so as to form a suitable guard.

Having described the lower guide mechan ism in detail, it will be sufficient to say that the upper guide is identical' therewith in all respects with the exception of mere com-l paratively insignificant details, and that the differences in these respects are set forth in Figs. 12, 13, 14, and 15, which sufficiently illustrate the upper guide when considered in View of the foregoing description and the y views of the lower guide. these figures it will be seen that in order to serve as an upper-guide the lower guide need only be inverted and that the quick-opening lever, locking-dog, and'guard not being required a plain hinged pin 28 and handle 29 By referring to are substituted therefor and that countersunk slotted screws 30 are' substituted for the tap-bolts 33, which hold the guide-plate supports in position, the slot S being beveled, as shown in Fig. 15.

We claim- Y 1. 'In mechanisms of the class described,

the combination of guide-plates mounted adjacent to opposite sides of a saw to be guided thereby, supporting-housings in which such guide plates are mounted, provided with shield portions forproteoting the guide-plates, and means for holding the guide plates adjustably in position, substantially as described.

2. In mechanisms of the class described, the combination of guide-plates mounted adjacent to opposite sides of a saw to be guided thereby, supporting plates provided with slots in which such guide-plates are mounted, means for holding the supporting-plates adjustably :in position, and a pivoted arm upon which the supporting-plates and guide-plates, for one side of the saw, are mounted extending along one side of the saw and beyond both edges to the opposite side thereof, substantially as described.

3. In mechanisms of the class described, the combination ot' two pairs of guide-plates formed of Babbitt metal, supporting-plates in which'such guide-plates are removably mounted, supporting-housings in which the supporting-plates are adjustably mounted, provided with shield portions extending over the guide-plates, and means for holding the supporting -plates and thereby the guideplates in position, substantially as described.

4. In mechanisms of the class described, the combination of a base-plate, supportinghousings mounted thereon, provided with shield portions extending over the guideplates, guide-plates mounted in such housings, and means for holding such guide-plates in position, substantially as described.

5. In mechanisms of the class described, the combination of a base-plate provided with a pair of rigid supporting-arms, guide-plate mechanism mounted upon one of such arms, a pivoted supporting-arm in sliding engagement with the other base-plate arm, guideplate mechanism mounted upon the pivoted supporting-arm, and means for holding the pivoted arm in closed position and permitting it to be opened, substantially as described.

G. In mechanisms of the class described, the combination of a base-plate provided with a pair ot` rigid supporting-arms, a housing adjustably mounted upon one ot' such supporting-arms vprovided with a shield portion extending over the guide-plate mechanism, guide plate mechanism mounted in such housing, a movable supporting-arm in sliding engagement with the other base-plate arm, guide-plate mechanism mounted upon such movable supporting-arm, a housing for such guide-plates provided with a shield portion extending over the guide-plate mechanism, and means for holding the movable supporting-arm in closed position with relation 'to the housing and permitting it to be opened,

substantially as described.

7. In mechanisms of the class described, the combination of a base-plate, a pivoted supporting-arm mounted in sliding engagement with the base plate, a supportingbracket mounted at one end of the base-plate upon which such supporting-arm is pivotally mounted, guide-plate mechanism mounted upon such pivoted supporting-arm, guideplates mounted independently of the supporting-arm, and means arranged at the end of the base-plate opposite to that on which the pivot-supporting bracket is mounted for holding the swinging end of the pivoted supporting-arm in closed position and permitting it to be opened, substantially as described.

8. In mechanisms ofthe class described, the combination of a base-plate, guide-plate mechanism mounted thereon, a pivoted supporting-arm arranged in sliding engagement therewith, a supporting-bracket arranged at one end of the base-plate upon which such supporting-arm is pivotally mounted, a locking-bracket arranged at the opposite end of the base-plate, means for locking the swinging end of the pivoted arm in closed position and permitting it to be opened, and means `for adjusting the locking-bracket and supporting-bracket and holding them in position, substantially as described.

9. In mechanisms of the class described, the combination of abase-plate provided with a pair of rigid supporting-arms, a supportingbracket mounted at one end of the base-plate, a guide-plate pivoted supporting-arm pivotally mounted in such bracket lin sliding engagement with the oppositebase-plate arm, guide-plate mechanism mounted in such pivoted supporting-arm, a lockingbracket mounted at the opposite end of the baseplate, mea-ns for holding the swinging end of the pivoted arm in engagement with the locking-bracket, guide-plates mounted independently of the movable supporting-arm, and means for adjusting the independentlymounted guide-plates independently of the locking and supporting brackets and holding them in position, substantially as described.

l0. In mechanisms of the class described, the combination of a base-plate, guide-plato mechanism mounted thereon, a supportingbracket, a locking-bracket mounted on the opposite end of the base-plate at each side of such guide-plate 1nechanism,'a supportingarm pivotally mounted in the supportingbracket and provided with means for removably engaging the locking-bracket, guideplate mechanism mounted upon such pivoted arm, means for holding the supportingbracket and locking bracket in position, means for adjusting the guide-plate mechanism arranged between such brackets, and means for adjusting the supporting and locking brackets and thereby the guideplates of the movable supporting-arm holding such parts in position, substantially as described.

ll. In mechanisms ot the class described, the combination of guide-plates arranged on opposite sides of a saw to be guided thereby,

IOO

IIO

housings in which such guide plates are mounted provided with shield portions extending over the guide-plates, and a guard arranged at one end of such guide mechanism, substantially as described.

12. In mechanisms of the class described, the combination of guide-plates arranged on opposite sides of a saw to be guided thereby, movable housings provided with upper inclined surfaces extending over the guideplates within which such guide-plates are mounted, and a guard arranged at oneend of such guide mechanism, substantially as described.

13. In mechanisms of the class described, the combination of two sets of guide-plates arranged on opposite sides of a saw to be guided thereby, and supporting mechanism extending from one side of the saw beyond both edges and to the opposite side thereof upon which one set of such guide-plates are mounted, substantially as described.

14. In mechanisms of the class described, the combination of two sets of guide-plates arranged on opposite sides of a saw to be guided thereby, and connected supporting mechanism extending beyond both edges of the saw lo the opposite sides thereof upon which such guide-plates are mounted, forming a lower guide, and an upper guide arranged above such lower guide inoperative engagement with the saw, substantially as described.

15. In mechanisms of the class described, the combination of a base-plate pivotally mounted upon a suitable frame, two sets of guide-plates, means for attaching one set of such guide-plates to the base-plate, means for adjusting each of the guide-plates independently and holding them in operative position, an arm pivotally mounted on the pivoted base-plate for supporting the other set of guide-plates, and means for holding the swinging end of such arm in position, substantially as described.

V16. In mechanisms of the classdescribed, the combination of a base-plate, two sets of guide-plates arranged on opposite sides of a saw to be guided thereby, mechanism for supporting the guide-plates upon the base-plate, and means for adj ustably attaching the guideplate-supportin g means to the base-plate comprising a plurality of holders, each slidably arranged in engagement with the base-plate and provided with adj usting-screws in threaded engagement therewith extending transverselyof the base-plate, and a collar upon one end of each of such adjusting-screws in sliding engagement with the guide-platesupporting mechanism, substantially as described.

17. In mechanisms of the class described, the combination of a base -plate xnovably mounted and provided with a slot extending longitudinally thereof, two sets of guideplates arranged onopposite sides of a saw to be guided thereby, guide-plate-supporting mechanism arranged slidably upon such baseplate upon which such guide-plates are mounted, a plurality of holders slidably mounted in the longitudinal slot of the base-plate in engagement with the guide-plate-supporting mechanisms and movable longitudinally of the base-plate, and means for adjusting the guide plate-supporting mechanisms transversely of the base-plate, substantially as described.

WILLIAM H. TROUT. GEORGE M. HINKLEY.

Witnesses:

FRANK W. GREENLEAE, J. SIDNEY HELLIWELL. 

